"If only EssExTee could be so grossly incandescent" (essextee)
11/18/2014 at 11:57 • Filed to: None
0
7|
"If only EssExTee could be so grossly incandescent" (essextee)
11/18/2014 at 11:57 • Filed to: None | 0
| 7 |
Lately the Jeep's been idling like a clothes dryer full of rocks when the engine's cold, and it idles way too low until I give the throttle a few good stabs. Is the fix as simple as raising the idle speed, or is there more to it?
crowmolly
> If only EssExTee could be so grossly incandescent
11/18/2014 at 12:01 |
|
What carb is on it? Is there a choke, and is it working properly?
|
If only EssExTee could be so grossly incandescent
> crowmolly
11/18/2014 at 12:06 |
|
It's an aftermarket Weber 2bbl, don't know the model number. It started and ran perfectly all summer so I assume the choke is in good order.
youshiftem
> If only EssExTee could be so grossly incandescent
11/18/2014 at 12:09 |
|
I always jet up for the winter, 2-3 sizes usually does the job. You're going to have to richen your idle adjustments as well, usually with every 20deg drop.
Sweet Trav
> If only EssExTee could be so grossly incandescent
11/18/2014 at 12:09 |
|
First, I'd make sure your choke is working properly. After that you may want to make your idle mix a little richer, cold, dense air requires more fuel to keep stoich and everything happy.
Jesse Shaffer
> If only EssExTee could be so grossly incandescent
11/18/2014 at 12:11 |
|
Basically, you want to get the fuel up to temperature as quickly as you can. EFI solves this with exhaust-gas recirculation (which was a really stupid, cheap idea.) Warm fuel separates and turns in to a vapor easier than cold gasoline - giving you a more effective and more even flame kernel (can you believe I'm 26 and work for minimum wage? [non-automotive focus issues]) in the pent-house. Tuning your idle mix towards rich will take a little roughness out, but your engine will take longer to reach operating temperature. If you lean it out a bit, the carb (and fuel) will get warmer, quicker - but you get closer to risking detonation...
... there's really no good answer, here. That's why we stopped using carburetors. Chrysler prototyped a fuel-heating system on the Lancer or some similar K-car, but I can't find that article at the moment.
BoulderZ
> If only EssExTee could be so grossly incandescent
11/18/2014 at 12:41 |
|
When I used to run carbs, I could tell when my 2 bbl was heading for rebuild time by first it was harder to start in the cold without a lot of foot-adjustment in warmup, followed by higher CO readings leading to emissions failure. Every time I got around to doing the rebuild, it was obvious the choke wasn't fully working (fortunately part of the rebuild kit). New choke parts and all adjusted, started and ran down to -20F for another 50,000 miles. It's tedious but not difficult to rebuild a carb (just follow the directions, stay organized, and don't rush), and kits aren't usually expensive. I don't know what it would cost to have a shop do it these days, assuming you find one willing to mess with a carburetor anymore (they understandably want higher margin simpler jobs, if they can help it). Then I got tired of carbs at altitude, recycled it and replaced it with SDS EFI and a turbo. Po-tay-toe, po-tah-toe.
camaroboy68ss
> If only EssExTee could be so grossly incandescent
11/18/2014 at 12:45 |
|
you should check because in warmer weather the choke isn't as big of issue because sitting in the warm weather keeps the fuel warmer and depending on the type of choke could not even be actually on. This is if the choke is a thermostat spring that in coils as it gets warm.